Drying and gas or vapor contact with solids – Material treated by electromagnetic energy – Microwave energy
Reexamination Certificate
2006-03-07
2006-03-07
Gravini, S. (Department: 3749)
Drying and gas or vapor contact with solids
Material treated by electromagnetic energy
Microwave energy
Reexamination Certificate
active
07007405
ABSTRACT:
A method and apparatus for drying book and similar paper-based materials in wet or frozen state, in which the material dried is exposed to microwave irradiation with frequency from 500 MHz to 10 GHz and in which the book or similar paper-based materials is lined with ceramic slabs before the drying. In this arrangement the materials are subsequently exposed to microwaves under atmospheric or reduced pressure. An apparatus for carrying out the method includes microwave drying oven modified for a batch or continuous operation, which includes adjustable ceramic slabs capable to absorb both moisture and microwaves.
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“Foundations and Industrial Applications of Microwave and Radio Frequency Fields” by G. Roussy and J.A. Pearce (pp. 370-387).
Drahos Jiri
Hajek Milan
Collard & Roe P.C.
Gravini S.
Ustav Chemick{grave over (y)}ch Proces{dot over (u)} Akademie V{
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